A small bone in the human spinal column, believed in Muslim and Jewish traditions to be the indestructible bone from which the body will be rebuilt at the time of resurrection.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "luz" in a sentence
"The electrical hookups look frightening, but the luz is very good; we run through an external surge protector and if the corriente is too low or too high or polarity reversed, it is no go."
"The Hebrew term luz occurs only in (Genesis 30: 37) Authorities are divided between the hazel and the almond tree as representing the luz."
"So, the story he told me goes like this: The Jewish sages say there is a bone in the neck, called the luz bone, which unlike the rest of the body, does not ever decompose when we are buried."